Pioneer PE6000 Series User Manual page 154

Description of Function Codes
Function
Code
PA-15
PA-16
PA-17
PID parameter switchover
PA-18
PID parameter switchover
PA-19
PID parameter switchover
PA-20
In some applications, PID parameters switchover is required when one group of PID
parameters cannot satisfy the requirement of the whole running process. These parameters are
used for switchover between two groups of PID parameters.
Regulator parameters PA-15 to PA-17 are set in the same way as PA-05 to PA-07.
The switchover can be implemented either via a DI terminal or automatically implemented based
on the deviation.
If you select switchover via a DI terminal, the DI must be allocated with function 43 "PID
parameter switchover". If the DI is OFF, group 1 (PA-05 to PA-07) is selected. If the DI is ON, group
2 (PA-15 to PA-17) is selected.
If you select automatic switchover, when the absolute value of the deviation between PID
feedback and PID setting is smaller than the value of PA-19, group 1 is selected. When the
absolute value of the deviation between PID feedback and PID setting is higher than the value of
PA-20, group 2 is selected. When the deviation is between PA-19 and PA-20, the PID parameters
are the linear interpolated value of the two groups of parameter values.
Figure 5-2 PID parameters switchover
PI parameters
Group 1 of PID
Group 2 of PID
Parameter Name
Proportional gain Kp2
Integral time Ti2
Differential time Td2
condition
deviation 1
deviation 2
parameters
parameters
Setting Range
0.0–100.0
0.01–10.00s
0.000–10.000s
0: No switchover
1: Switchover via DI
2: Automatic switchover based
on deviation
0.0% to PA-20
PA-19 to 100.0%
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PE6000 User Manual
Default
20.0
2.00s
0.000s
0
20.0%
80.0%
PID deviation